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http://dx.doi.org/10.12989/was.2019.28.2.089

Linearized analysis of the internal pressures for a two-compartment building with leakage  

Yu, Xianfeng (State Key Laboratory of Subtropical Building Science, South China University of Technology)
Gu, Ming (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University)
Xie, Zhuangning (State Key Laboratory of Subtropical Building Science, South China University of Technology)
Publication Information
Wind and Structures / v.28, no.2, 2019 , pp. 89-97 More about this Journal
Abstract
The non-linear equations governing wind-induced internal pressures for a two-compartment building with background leakage are linearized based on some reasonable assumptions. The explicit admittance functions for both building compartments are derived, and the equivalent damping coefficients of the coupling internal pressure system are iteratively obtained. The RMS values of the internal pressure coefficients calculated from the non-linear equations and linearized equations are compared. Results indicate that the linearized equations generally have good calculation precision when the porosity ratio is less than 20%. Parameters are analyzed on the explicit admittance functions. Results show that the peaks of the internal pressure in the compartment without an external opening (Compartment 2) are higher than that in the compartment with an external opening (Compartment 1) at lower Helmholtz frequency. By contrast, the resonance peak of the internal pressure in compartment 2 is lower than that in compartment 1 at higher Helmholtz frequencies.
Keywords
internal pressure; governing equation; linearization; background leakage; admittance function;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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1 Wang, Y. and Li, Q.S. (2015), "Wind pressure characteristics of a low-rise building with various openings on a roof corner", Wind Struct., 21(1), 1-23.   DOI
2 Xu, H., Yu, S. and Lou,W. (2014), "The inertial coefficient for fluctuating flow through a dominant opening in a building", Wind Struct., 18(1), 57-67.   DOI
3 Xu, H., Yu, S. and Lou,W. (2017), "The loss coefficient for fluctuating flow through a dominant opening in a building", Wind Struct., 24(1), 79-93.   DOI
4 Yu, S.C., Lou, W.J. and Sun, B.N. (2008), "Wind-induced internal pressure response for structure with single windward opening and background leakage", J. Zhejiang Univ. Sci A, 9, 313-321.   DOI
5 Yu, X.F., Quan, Y. and Gu, M. (2012), "Responses of windinduced internal pressure in a two-compartment building with a dominant opening and background porosity Part 1: Theoretical formulation and experimental verification", J. Cent. South Univ. 19, 2940-2948.   DOI
6 Vickery, B.J. and Bloxham, C. (1992), "Internal pressure dynamics with a dominant opening", J. Wind Eng. Ind. Aerod., 41-44, 193-204.   DOI
7 Oh, J.H., Kopp, G.A. and Inculet, D.R. (2007), "The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part 3. Internal pressures", J. Wind Eng. Ind. Aerod., 95, 755-779.   DOI
8 Holmes, J.D. (1979), "Mean and fluctuating internal pressures induced by wind", Proceedings of the 5th International Conference on Wind Engineering, Colorado State Univeristy, Colorado.
9 Liu, H. and Saathoff, P.J. (1981), "Building internal pressure: sudden change", J. Eng. Mech. Div., 107, 309-321.   DOI
10 Miguel, A.F., van de Braak, N.J., Silva, A.M. and Bot, G.P.A. (2001), "Wind-induced airflow through permeable materials Part II: air infiltration in enclosures", J. Wind Eng. Ind. Aerod., 89, 59-72.   DOI
11 Pan, F., Cai, C.S. and Zhang, W. (2013), "Wind-Induced Internal Pressures of Buildings with Multiple Openings", J. Eng. Mech., 139, 376-385.   DOI
12 Saathoff, P.J. and Liu, H. (1983), "Internal Pressure of Multi-Room Buildings", J. Eng. Mech., 109, 908-919.   DOI
13 Shanmugasundaram, J., Arunachalam, S., Gomathinayagam, S., Lakshmanan, N. and Harikrishna, P. (2000), "Cyclone damage to buildings and structures - a case study", J. Wind Eng. Ind. Aerod, 84, 369-380.   DOI
14 Sharma, R.N. (2003), "Internal pressure dynamics with internal partitioning", Proceedings of the 11th International Conference on Wind Engineering, Lubbock Texas.
15 Sharma, R.N. and Richards, P.J. (1997), "The effect of roof flexibility on internal pressure fluctuations", J. Wind Eng. Ind. Aerod., 72, 175-186.   DOI
16 Guha, T.K., Sharma, R.N. and Richards, P.J. (2013a), "Wind induced internal pressure overshoot in buildings with opening", Wind Struct., 16(1), 1-23.   DOI
17 Vickery, B.J. (1986), "Gust-factors for internal-pressures in low rise buildings", J. Wind Eng. Ind. Aerod., 23, 259-271.   DOI
18 Guha, T.K., Sharma, R.N. and Richards, P.J. (2013b), "Dynamic wind load on an internal partition wall inside a compartmentalized building with an external dominant opening", J. Architect. Eng., 19, 89-100.   DOI
19 Tecle, A.S., Bitsuamlak, G.T. and Aly, A.M. (2013). "Internal pressure in a low-rise building with existing envelope openings and sudden breaching", Wind Struct., 16(1), 25-46.   DOI